Saw-feeding mechanism.



T. RICHARD.

SAW FEEDING MBGHANSM.

APPLIOATION FILED PBB.3,1913.

Patented Nov. 18, 1913.

4 SHEBTS-SHBET 1.

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mom.

Witnesses:

Attorneys Witnesses:

T. RICHARD.

SAW FEEDING MECHANISM.

APPLIGATION FILED PEB. 3, 1913.

COLUMNA PLANOGRAPH c0..wAsn|NaTnN. u, C.

Patented Nov. 18, 1913.

4 SHEETS-SHEET 2.

Inventor Attorneys T. RICHARD.

SAW FEHDING MECHANISM.

APPLIOATION FILED 113.3,19134 1,079,145. Patented N0v.18, 1913.

4 SHEETS-SHEET 3.

lnvenlor COLUMBIA PLANOGHAPII co1. WASHINGTON. D. c.

T. RICHARD.

SAW FBBDING MBGHANISM.

AYPLIOATION FILED IBB. 3, 1913.

1,079, 14.5. Patented Nov. 18; 1913.

4 SHEETS-B11211124.

mmf/4J )Wa/,mw Witnesses; j. lnvenlor Attorneys eoLUMIXIA PLANDGHAPN C0.,w^|uNuToN. D. c,

sa rn T FFICE.

THOMAS BICI-IARD, OF MONTREAL, QUEBEC, CANADA, ASSIGNOR 0F ONE-HALF TO .AIME BOILEAU, OF ST. RAPHAEL, ILE BIZARD, QUEBEC, CANADA.

SAW-FEEDING MEGHANISM.

To all whom t may concern Be it known that I, THOMAS RICHARD, a subject of the King of Great Britain, residing at Montreal, Province of Quebec, Canada, have invented certain new and useful Improvements in Saw-Feeding Mechanism; and I do hereby declare that the following is a full, clear, and exact description oi the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

The invention to be hereinafter described relates to saw setting and tiling machines.

In order to more clearly disclose the construction, operation and use of the invention, reference should be had to the accompanying drawings forming part of the present application.

Throughout the several ligures of the drawings like reference characters designate the same parts.

In the drawings: Figure 1 is a top plan view of the machine; Fig. 2 is a side view; Fig. 3 is a fragmentary, vertical, sectional, side view; showing the operation of the tile supporting arms; Fig. t is a detail side view of the saw set and its supporting arm; showing its operation; Fig. 5 is a detail view of the ratchet wheel and lingers for operating the saw frame; Fig. 6 is a top plan view of the saw set, its operating lever, and its supporting arm; Fig. 7 is a central, vertical, sectional view of the saw set; and Fig. 8 is a detail end view of the saw set, as secured to its supporting arm.

Broadly speaking the machine comprises slidably mounted saw holding means; slidably mounted saw filing means; saw setting means, and means for operating the several parts. The saw holding means comprises a contracted U shaped rigid frame 1 having an inner fixed jaw 2 and an oppositely opposed pivotally mounted outer jaw 3. The outer jaw 3 is provided near each end with a downwardly and outwardly presented arm l through which is threaded a hand screw 5 with its inner end bearing against the curved outer side 6 of the frame 1. By this means, after the saw has been placed between the two jaws 2 and 3 it may be secured in position by screwing the hand screws 5 in, thus forcing the arms 4 up and tightening the pivotally mounted jaw 3 against the saw blade 7.

The contracted U shaped frame 1 is slid- Specification of Letters Patent.

Application filed February 3, 1913.

Patented Nov. 18, 1913. serial No. 745,767.

ably mounted on two parallel rods 8 and 9 carried in the upper ends of the curved end arms 10 ot' a sub frame 11. The sub frame 11 is slidably mounted in a sleeve l2 by means of a base rod 13 slidably operative therein. The sleeve 12 is provided with binding screws 14 for the purpose of securing the sub frame in any desired position. This sleeve is integral with a turntable 15 pivotally mounted on the base 1G of the machine, around a center pin 17.

The turntable 15 is provided with a quarter circumferential slot 1S through its inner side, through which a binding screw 19 operates to lock the turntable in any desired position. By the above means the sub arm 11 may be transversely adjusted through the sleeve 12; and the sub frame and the upper saw frame l carried thereby may be horizontally adjusted at any desired angle to the tiling means.

For the purpose ot' moving the slidably mounted saw i'rame 1 along the rods 8 and 9, the rack 20 is provided, secured to the saw frame 1 by uprights 2l at each end of the frame, and operating between the curved arms 10 ol the sub frame 11 which support the rods 8 and 9. The rack 20 is in engagement with a horizontally mounted cog wheel 22 secured to the upper face of a ratchet 23 which is mounted on the upper face of the central part of the turntable l5 around the center pin 17.

Ratchet wheel 23 is revolved by means of pivotally mounted spring pressed ratchet fingers 24 of gradually decreasing lengths carried on the outer end oil a horizontal rod 25 slidably operative in standards 2G and in engagement with the ratchet wheel. 23. The rod 25 is actuated back and forth through the standards 26 by a cam operated arm 27 the lower end of which is pivotally secured to the rod and the upper end ol. which is pivotally secured to a block 28. The block 28 is slidably adjustable on an upwardly curving arm 29 pivotally mounted at its lower end on the base 1G; by means of a binding screw 30. A cam iframe 31 provided with diametrically opposite interior roller bearings 32 is mounted near the upper end of the curved arm 29 on the inner face thereof, and around a cam 33 mounted on the end of the shaft 3ft ot the main drive sprocket wheel 35. It will be evident that Awhen the main drive sprocket wheel 35 is revolved by means of the crank arm 36, that the curved arm 29 will be agitated back and forth and that this motion will be imparted to the horizontal rod 25; which, by means of the ratchet tinge 24 will revolve the ratchet wheel 23. it will of course revolve the cog wheel 22 which is in engagement with the raclr 20, and thus move the saw trame l along the rods 8 and 9. As the length ot the stroke of the arm 27 can be regulated by means of the slidably adjustable block 28 on the curved arm 29; the motion of the saw trame l can 4also be regulated by the same means; as this motion is directly dependent upon the stroke o the arm 27. The ratchet tingers 24 being of gradually decreasing length, from the top linger to the bottoni one, there will always be one or more fingers in engagement with the ratchet wheel 23, so that the movement oiA the saw frame l will be uniform; as there is no lost motion.

lThe saw filing means comprises a slidably mounted cam actuated iile holder; means tor securing the tile in the holder; means for supporting the le holder; and means tor lifting the tile. The iile holder comprises a plate 37 slidably mounted in guide ways 38 of a horizontal arm 39, and having downwardly slanting arms carrying collars 40 in which are slidably mounted sleeves 4l adapted to receive the ends of a file 42; as shown in Fig. 3. The collars 40 and sleeves 4l are provided with binding screws tor the purpose of locking the sleeves 41 and the iile 42 in adjustment, respectively.

The file holder is actuated back and forth by means of an arm 43 pivotally connected at its outer end 'to the tile holder; and having its inner end pivotally connected to a block slidably adjustable in a groove 44 of a wheel 45 which is mounted on the end ol' the shaft 46 of a secondary drive sprocket Wheel 47 driven from the main drive sprocket wheel 35 by means of a sprocket' chain 48. The shafts 34 and 46 are supported by suitable branched standards 49 and 50, respectively.

The lile lifting means comprises a horizontal arm 5l pivotally mounted on an arm 52 of a cylindrical standard 53, and having its outer end pivotally secured to the cylindrical supporting rod 54 of the horizontal arm 39 and its inner end provided with a cam frame 55 similar to the cam frame 3l, and agitated by means of a cam 56 mounted on the shaft 46. rlhe cylindrical supporting rod 54 of the horizontal rod 39 is slidably mounted in the cylindrical standard 53 so that the' rod may be moved up and down therein by the horizontal arm 51. To limit the motions of the cylindrical rod 54 it is provided 'with lateral blocks 57 operating in openings 58; in the wall of the cylindrical standard 53. The filing operation may be ,position in YrelationV to the lile. After the Ars the ratchet wheel 23 revolves described as follows: The saw is iirstisecured in the saw frame l, and then by` means of the sliding adjustments and theturntable,

set at the proper angle, and in the proper strokes of the several cam arms have been properly adjusted, the machine isoperated by rotating the crank arm'36. The'tile is lowered into engagement with the saw teeth Y when being operated outwardly; but is litted out ciz engagement when being operated inwardly. At the same time that the iile is lifted out of engagement with the saw teeth, the saw trame and ol' course the saw, is moved along the rods. 8 and 9 the space ot two teeth, so that the tile engages every other tooth. ritter the saw has been passed under the lile once, it is then readj usted and passed under the file a second time; this completing the sharpening.

lThe saw setting means comprises a supporting arm, a specially constructed set 7; and ineanslor operating the same. llhe saw set supporting arm 59 is secured to the cylindrical standard, as shown in Fig. 2; so to extend parallel to and in front or" the arm 89. The arm 59 is provi'dedon its under face with a downwardly presented stud 60 adapted to be received by a collar 61V ot the set 62, provided with a bindingscrew 63; for the purpose of securing the set to the arm. i

The set 62 comprises. an approximately rectangular frame 62EL in the upper part o which is loosely mounted "a vertical plunger rod 64 normally held in a raised lposition by a coil spring'65 operating against a washer 66' secured around'the plungerirod 64 and against a central wall 67 of the traine 62a and carrying a pivotally mounted wheel 68 inits biturcated Vlower end; means for adjusting the plunger rod and means tor regulating the depth of the setof the saw.

rllhe means forV adjusting the plunger'rod comprises a horizontal set Vscrew 69 and a screw pressed horizontal member 70 carrying in its bifurcated inner end a wheel 71; both operating through the horizontal Vwall 67 and acting against lopposite sides of the plunger rod 64.V By this means the plunger rod may be given any desired slant. The means for regulating the depth of the set ot the saw comprises a slidably mounted block 72 having an inner upwardly and outwardly slantingtace 7 8 and a narrow ver*l tical facev 7 4 ;V carried on the inner end of a set screw 7 5 slidably and vertically adjustfable in av slot 76 through the outer wall ot the frame 622L in combination with 'a set screw 77 threaded through the inner` wall of the frame 62a. The tooth edge of the saw 7 is inserted into the lower part of the set 62; the set screw is then adjusted so as to hold the blade firmly between the inner end of the screw and the vertical .face 74 ot the i, 3a

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block 72. lt Will be evident from Fig. 4 that the depth of the bend of each tooth can only extend to the upper face of the vertical face 711- of the slidably mounted bloei: 72; therefore, by adjusting the height of the block in relation to the edge of the saw, the depth of the set may be regulated.

The set G2 is operated by means of two pivotally connected, horizontal and vertical levers 7 S and 79 respectively which are operated by a cam actuated arm 80, pivotally mounted on the standard and carrying on its upper end a cam frame 81; similar to the cam iframe 3l, and operated by a cam mounted on the .shaft Bel; and pivotally connected at its lower end to the lower end of the vertical lever 79, by a bolt and nut connection. The horizontal lever' 7S has its outer end pivotally connected to a lug 82 mounted on the top edge of the arm 59 so as to be a little in liront of and above the arm; and is provided with a plate 83 adapted to engage the top oi the plunger rod Gil; so as to force it down.

The operation is as follows: As the arm 80 is agitated, the horizontal lever 78 is moved up and down in a vertical plane causing the plate 88 to strike the plunger rod (3ft so as to torce it down every time the lever is forced down; thus causing the wheel 68 carried in the lower ends of the plunger rod to be forced down against the side of the saw tooth, and in this way setting it. The set being operated from the same source, as the tiling means sets every other' tooth only and after the saw has been passed through the set once, it is then taken ont of the saw frame and reversed in relation to its former position, and passed through the set again; this completing the operation. The set and the tiling means may be used in combination or separately, as desired. When it is desired to use the filing means alone, the arm 59 may be removed from the standard 53, and the lower end oi the vertical arm 79 may be disconnected from the lever 80 by removing the nut and bolt therefrom; this leaves the tiling means iree to be used alone.

The principal advantages of this invention are that by this means a saw can be set and sharpened in the one operation; or set or sharpened independently; and that the saw can be automatically adjusted for such setting and sharpening; and that it can be set at any desired angle to the tile for sharpening purposes.

lt is thought that the construction, operation7 and use ol' the invention will be clear :trom the preceding detailed description.

Changes may be made in the construction, arrangementr and disposition oi the several parts oi the invention without in any way departing from the lield and scope of the same, and it is meant to include all such within this application wherein only a preferred lorm has been disclosed.

l'l'aving thus lully described my invention, what l claim as new and desire to secure by Letters Patent is:

ln combination with a machine of the character described slidably mounted, and slidably and pivotally adjusted saw holding means; means lor securing the saw holding means in adjustment; and rack gear means i'or operating the slidably mounted saw hold- .ing means.

ln witness whcreo'l I have hereunto set my hand in the presence of two witnesses.

THOMAS RICHARD.

Witnesses L. A. GAUvlN, E. J. GAUviN.

Copies oi. this patent may be obtained for five cents each, by addressing' the Commissioner of Patents, Washington, D. C. 

